++ed by:
Graham Barr


CPAN::DistnameInfo - Extract distribution name and version from a distribution filename


  my $pathname = "authors/id/G/GB/GBARR/CPAN-DistnameInfo-0.02.tar.gz";

  my $d = CPAN::DistnameInfo->new($pathname);

  my $dist      = $d->dist;      # "CPAN-DistnameInfo"
  my $version   = $d->version;   # "0.02"
  my $maturity  = $d->maturity;  # "released"
  my $filename  = $d->filename;  # "CPAN-DistnameInfo-0.02.tar.gz"
  my $cpanid    = $d->cpanid;    # "GBARR"
  my $distvname = $d->distvname; # "CPAN-DistnameInfo-0.02"
  my $extension = $d->extension; # "tar.gz"
  my $pathname  = $d->pathname;  # "authors/id/G/GB/GBARR/..."

  my %prop = $d->properties;


Many online services that are centered around CPAN attempt to associate multiple uploads by extracting a distribution name from the filename of the upload. For most distributions this is easy as they have used ExtUtils::MakeMaker or Module::Build to create the distribution, which results in a uniform name. But sadly not all uploads are created in this way.

CPAN::DistnameInfo uses heuristics that have been learnt by http://search.cpan.org/ to extract the distribution name and version from filenames and also report if the version is to be treated as a developer release

The constructor takes a single pathname, returning an object with the following methods


If the path given looked like a CPAN authors directory path, then this will be the the CPAN id of the author.


The name of the distribution


The file name with any suffix and leading directory names removed


If the path given looked like a CPAN authors directory path, then this will be the path to the file relative to the detected CPAN author directory. Otherwise it is the path that was passed in.


The maturity of the distribution. This will be either released or developer


The extension of the distribution, often used to denote the archive type (e.g. 'tar.gz')


The pathname that was passed to the constructor when creating the object.


This will return a list of key-value pairs, suitable for assigning to a hash, for the known properties.


The extracted version


Graham Barr <gbarr@pobox.com>


Copyright (c) 2003 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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